Oral Answers to Questions — Public Building and Works – in the House of Commons at 12:00 am on 16 July 1963.
asked the Minister of Public Building and Works whether he will arrange for the washing down of the stonework at the Treasury when restoration is completed, so that the architectural details of the building may be seen.
I have arranged for the stonework to be brushed down, to remove superficial soot and dirt and to tone down the new stone used in the repairs. Experiments have shown that washing down would be unlikely to restore the original colouring.